Planograpii co



L. A. HAWTHORNE AND B. S. PERO.

METAL WORKING MACHINE.

WTNESSES 'fi m L. A. HAWTHORNE AND B. S. PERO.

METAL WORKING MACHINE. APPLICATION FILED MAY 5. 1911.

Ww w 9 L m M 1, n m w WW .M w y A. s, w A u m J E d w obv 6 f .m A f D.. ..q 'n m l. nflm: Ri f. v- F m m u O o o o o G w. |II III xv* .e w A ...D a n r Nv wm .um Nvo |i||||| Wm km .w Q w mw mw 6 m s 1, w Q E 1 A way 1. WA

THE COLUMBIA PLANUGRAPH co.. WASHINUTON, D. E.

L. A. HAWTHORNE AND B. S. PERO.

- METAL WORKING MACHINE.

APPLICATION FILED MAY 5. 1917. 1,811,276. I Patented July 29, 1919.

v6 SHEETS SHEET 3.

'rms Lum/mum PLANoan/Pn co.. wASHlNuTON. n. c

L. A. HAWTHORNE AND B. S. PERO. METAL WORKING MACHINE.

APPLICATION AIIIsn MAY 5. Isn.

Patented-'July 29, 1919.

6 SHEETS-SHEET 4.

WTNESSES .gm Q

Tm; cuLuMmA PLANnGIeM-u cn.. WASHINGTON, n. c.

L. A. HAWTHORNE AND B. S. PERO.

METAL WORKING MACHINE.

APPLICATION FILED MAY 5, I9I.

Patented July 29, 1919.

6 SHEETSY-SHEET 5.

@(74% nvm/mns A ORA/EVS TME COLUMBIA PLANOGRAPH co., WASHINGTDND. C.

L. A. HAWTHORNE AND B. S. PERO. l

METAL WORKING MACHINE. APRLICATION FILED MAY5. 1917.

THE COLUMBIA PLANoaRAPM co, WASHINGTON. D. c.

Patented July 29, 1919.

6 SHEETS-SHEET 5.

aya. f

UNITED STATES PATENT einen,N

LOUIS A. HAVTIIORNE, OF NEWARK, AND BERTRAM S. PERO. JERSEY CITY, NEW JERSEY, ASSIGNORS TO STEEL UTILITIES, INCORPORATED, A CORPORATION OF NEW YORK.

. chines, of which the following is a specification. y i

The invention relates to distance determining devices for relatively positioning metal shapes, beams and the like, with re- Y spect to tools, such as a punch or punches,

for operating thereon, as in machines for punching the rivet holes in structural shapes.

Objects and advantages of theinvention will be set forth in` p-art hereinafter, andin part will Vbe obvious herefrom, the same being attained through the instruinentalities and combinations pointed out in the appended claims.

. The invention consists in the 'novel parts,

constructions, arrangements, comihinations and improvements herein shown and described.

The accompanying drawingsreferred to herein and forming -a part hereof, illustrate one embodiment of the invention and t0- gether with the description serve to explain the principles thereof. Y

VOf the drawings:

Figure 1 is a fraginentary'top plan of a distance determining device constructed in accordance with the `principles of the invention; I

Fig. 2 is a side elevation, looking at Fig. 1 from the foot of the sheet;

VFig. 3 is a fragmentary section, on anen'- larged scale, of the upper right handportion of Fig. l, omitting lthe motor;

Fig. 4 is a similar fragmentary section, on an enlarged scale, of the upper left hand portion of Fig. 1, omitting the bevel gears and shafting;

Fig. 5 is a fragmentary section, substantially en the line A-B of Fig. 3;

Fig. G is an elevation, with parts broken away and parts in section, substantially on the line C-D of Fig. 1;

Fig. 7 is an elevation, of the distance de.- terinining device, looking thereat from the right in Figs. 1v and 2; and a punching mechanism coperating therewith or controlled thereby; and

Fig. 8 is a diagram, showing parts of the METAL-WORKING MACHINE.

speeicarion of Letters Patent. Fammi-,ed July 29, 1919 Application led May 5, 1917. Serial No. 166,58'5.

mechanism and therefor. l n Referring to the accompanying drawings, illustrating by way of example one embodiment and application of the invention, the saine is shown adapted to operate upon a structural shape in the form of an I-beam, the general arrangement of the punch traveling means and of thepunch operating means beiiig substantially the same as shown in application vSerial No. 839,368 filed May 18, 1914, now Patent No. 1,241,257 dated Sept. 25, i917.

The shape (Fig. 7) is shown resting upon-rollers 2, arranged in la series along and beneath the shape, which rollers are driven either continuously yor intermittently to propel or travel the shape endwise. In the illustrz'ited embodiment, the mechanism is adaipted to effect relative positioning of the shape :and punches transversely of, or across the shape, the punches and their dies traveling to and fro across the shape. The means for relatively positioning the shape and the punches in a longitudinal direction,

the controlling circuits 'as shown, are of a different form wherein the shape travels relatively to the'punches. The mechanism for so longitudinally positioning the shape comprises a traveling head 3 traveling on guideways 4 and 5, its movement and stopping being controlled through a screw shaft 6. The head 3 has an extension 7.against which the forward end of the shape m abuts, and against which the shape presses under the impulsion of the driven rollers2, so that the head 3 may longitudinally position the shape relatively to the punches. This form of mechanism, as shown, is substantially that shown in application Serial No. 842,231 of L. A. Hawthorne, Iiled June 1, 1914, now Patent No. 1,241,258, dated Sept. 25, 1917.

y The punches are shown as two in number, 8 and 9, and as having correspondingl dies 10 and l1., The punches 8 and 9 are mount ed in a transversely movable carrier 12, slidably mounted on guides on the punch structure, which carrier is in screw-threaded engagement with a screw shaft 13, the screw shaft being mounted in bearings 1li and 15 upon the punch structure. The dies 10 and l1 are mounted in a carrier 16, also slidably mounted on guides on the punch frame, which carrier is in screw-threaded engagement with a shaft 17, the shaft 17 being journaled at 18 and 19"on the punch frame. The punches and dies, as shown, are operated to punch the shape substantially in the 1nanner and by the mechanism described in said co-pending application Ser. No. 839,368 of Vurts & Swinnbank, now Patent No. 1,211,257.

Suitable means are provided for rotating in unison the shafts 13 and 17, thereby to travel the carriers 12 and 16 and therewith the bunches and dies, across the machines to effect the desired rel ative positioning thereof transversely zof the shape, so as to properly position the 'hole or holes with respect to the Width of the shape. The cooperative longitudinal 'positioning of the shape Will be effected by ithe distance determining device already referredto and partially described.

In the enibodied form of means for causingAa-nd controlling ordet'ermining the 'rotation in unison of theshafts 13 and 17, the shaft 1'3 isprovide'divith a bevel gear 2O meshing Witha beveled l"L )g'ear 21, the latter rotating With, but being slida-ble along, a shaft Shaft 22 is mounted in bearings 23, 24 and 'upon the pfunclh iframe, and is held in longitudinal position byg; a collar 30 bearing on bracket 24. Shaft 17 has fixed to the end thereof la beveled gear 26, meshing With a bevel gear 27, which is mounted upon the shaft`22 so as to be longitudinally slidable therealoii'g similarly to the gear 21.

The distance determining device, as embodied,fc`ontrols the positioning of the punch or punches with their corresponding dies by controlling'and determining the rotation of.

the shaft 22. Tbcdistance determining device niay be constructed or adjusted for any system of distance units. As embodied it ope' 'at'es on the footand inch system and is designedyto beoperated for inches `and sixteenths-of-an-inch, 'and it' is of sufficient scope "to accommodate 'beams of `the greatest width used 'in con'unercial practice. It Will be understood, of course, that the invention is applicableto other distance denon'iinations and to other distance systems.

The 'shaft 22 has vthereon a bevel gear 35 meshing with. a bevel gear 36 upon a shaft 37, which shaft is 'journaled Iin bearings 38 and i39 in a supporting bracket 40. To the other end of 'sliaft37 is `fixed a bevelv gear 41, which gear meshes with a bevel gear 42 upon a shaft `V43.v Shaft drives andcontrols in yunison sliaftsll'and `l7`andthe rotation an d stopping of shaft 43 is regulated and controlled by "the settable distance determining devices` to determine through theinechanism just describedthe travel and positioning of the punch or punches and dies.

In the embodied forni lof distance determining means,`the setta'ble devices are prefei'ably 'automatically 'controlled by suitable means such as a perforated sheet 'a (Fig. 8), cope l'ating with and controlling contacts 51 and 52 in electrical circuits, which are util `acting upon the shaft 43.

In the embodied form of means for controlling the rotation of the shaft 43, a plu rality of circularly arranged pins, sixteen in number, corresponding to the sixteenths-ofansinch, are provided and in operation, an arm which rotates With shaft 43 is stopped by the pin corresponding to any desired sixteenth-of-aninch, the pin beingl projected into the paths of the arm after the shaft 43 has made the requisite number of :rotations corresponding to the desired number of inches of travel of the punch transversely to the beam. That is inembodied form, if the desired distance reading were four 4and seven-sixteenth inches, the arm rotating with the shaft 43 Would sweep past each of the sixteen pins during the first inch, as none of vthese pins would be projected. The same thing Would occur during the second inch and also duringthe third and fourth inches, but as the arm Went about the next time on the next in`ch,the seven-sixteenth'pin would be projected and the shaft 43 Would be brought to rest after having imparted a travel of four and seven-sixteenths inches In the embodied form of mechanism, the shaft 43 has mounted thereon a gear Wheel 56, which meshes With a jpinion 57 on the shaft of a motor the motor being mountcd on thcbase 590i' the machine. The gear 56 is loose on shaft 43, having afriction drive comprising a spring 55 and friction disks `60. The shaft 43 has `fixed thereon, to rotate therewith, an arm 61, which arm is held in angular position by suitable means, such as a spline 62. -Arm 61, by reasonof the connections between shaft 43 and the punchdie blocks, has rotational travel `proportionately to the relative travel of the punches and the shape and by stopping arm 61 in accordance with the successive readings of the distance record sheet, the Vpunches and shape are successively positioned transversely for the various holes to be punched in the shape or 'like Work.

The shaft 43 is journaled in a circular support 163 said support carrying the annular series of projectableand retractable pins 64 which determine Ethe successive positioning or stopping points for the arm 1131 for sue cesivelreadings or 'positionings of the punch.

As embodied, ythe 'stop pins representing the sixteenth o`f-an-inch are solenoid operated. 'The pins 64 are reciprocably mounted in sockets in an apertured ring G5 the ring extending outwardly from the "support G3. The pins G4 are connected respectively to thecores 'GG of a mirresponding series'of solenoids G7, `which solenoids are supported orcarried bythe support 63.

The various solenoid cores (S6 are held decentered, with their pins G-.t retracted, by springs 68, acting between bushings 69 and nuts 70 on the heads of the respective cores. The /various solenoids are in circuit with tl e perfo ated distance record sheet, or other distance indicating or settable means, and with various parts of the mechanism, as will be later described.

Extending along shaft 43, and supported at one end by the support 63, and at the other end by a pillar or pedestal 71, is a bar 72. Said bar 72 is provided with a series of spaced teeth 73 representing inches of distance of travel of the punch. Meshing with the teeth 73 is the thread 78 on the exterior of a traveling circuit-closii'ig device or cir'4 cuit controller 79. Circuit controller 79 encircles shaft 43 to rotate therewith and to travel therealong, due to the engagement of the teeth 78with the teeth 73. The controller 79 is caused to turn with shaft 43 by suitable inea-ns such as a key 80. The lead of the thread 78 of controller 79 thus engages a new tooth 73 for each rotation of shaft 43.

Mounted between each pair of teeth 73 is a springpressed circuit opening and closing device, said device as embodied comprising a contact head 81, which head is urged inwardly or toward the thread 78 by a spring s 82. The device is held in position by a suitable bushing 83 screwed into the bar 72.

Fixed to each contact head 81 is a pin 84, extending outwardly through the bushing- 83. Each pin 84 carries at its external end an insulated circuit closing piece or head 85,

which head when in the outward position is adapted to close the circuit between two spring contact fingers 86 and 87. The spring contacts corresponding in the present case to inches, are mounted on insulating strips 76 and 77 carried on the bar 72. Thus as the shaft 43 rotates, the controller 79 will advance the distance of the pitch of its eXternal thread, that is, the distance of one tooth and the `intervening space alone; the teeth 73, and the head of the thread 78, for each inch of advanceor travel of the punch 8 across the shape l, will close an additional circuit contact 86 and 87 corresponding to the particular inch of travel.

Means are provided in the embodied form of the invention forsuccessively closing the shaft 43 a circular disk 91, Vwhich Vdisk is preferably radially apertured to receive a series of projectable and selectable contact pins 92. Pins 92 are inwardly iinpelled, respectively, by springs 93 coiled therealoout, the device being held in its aperture by a screw bushing 94.

Each contact piece 92 has projecting reartacts 97 and 98, which contacts are mounted respectively lon two insulating` rings 99 and 100, mounted on the two faces of the disk 9i. Fixed on the shaft 43, in alineinent with the points of the contact pins 96, is a cani 191., and this cani, as the shaft rotates, successively raises the contact pins 92 and thus successively closes the various circuits at Vthe respective contact pieces 97 and 98.

Thus each sixteenth of an inch contact 99, 97 of the circular' series just described closed in sequence during each inch, and the inch contacts are closed in sequence on the successive rotations of the shaft 43, throun'n the consequent advance of the controller 79, the thread of which engages and pushes outwardly the successive contact pins 8l.

The various solenoids G7 for the espective siXteenths-of-an-inch are in series connected with the inch contacts 8G, 87 and with the sixteenth of-an-inch contacts, 97, 98, the inch contacts being in parallel with each other and the various siXteenths-of-an-inch Contact being in parallel with each other. Thus, the circuit will be made successively for each inch due to the advance of the controller7 9, andthe contact for each si vteenthu of-an-inch will he niade successively in each inch due to the advance of the cam 101. The distance record sheet has, however, energized only one particular inch and only one particular siXteentliofaninch. Thus, if the desired positioning of the punch in the punching' machine is four inches and seven-sixteenths of-aninch, the energized circuit will be closed at the seven sixteenths of-an-inch for each rotation of the cani 101, but during the first rotation of the shaft 43 the other series gap in the circuit which will be closed is for the iirst inch, which is not energized. The saine will be true of the second, third and fourth inches. llilhen the controller 79 advances to project the contact closing device for the fifth inch, the circuit will be alive at this point, and when the seven siXteenths inch pin 92 is projected to the circuit closing position by the cani 101, the circuit will be closed at both points., and the corresponding solenoid 67 will be energized, and the proper pin 64 projected into the path of the arm 61, and the punch will, be stopped at the desired position with respect to the beam, namely at the four and sevensiXteenths inch position.

Means are provided by the invention for slowing down the motor prior to the punch reaching the desired limit of travel, whereloy the punch is slowed up preparatory to stopping. 1n the embodied forni thereof, the mechanism is practically of the same form as that for controlling the inches of travel, but in this case the contacts are arranged to .'ary the resistance in a certain .manner so as to give the requisite decrease et speed to the motor. As embodied, a bar 120 is provided extending lengthwise of the shaft 43 at the opposite side thereof from the bar 72, the bar 120 having a series et teeth 121. The contacts may be siinilar in censtruction to the inch contacts already described, and detailed description thereof is unnecessary. The teeth 121 corresponding to the saine inch value as particular teeth of the series 72 will be set ahead er to the right in Fig. 1 a sullicient distance to give the desired lead to the slow7 down device. Thus, if the motor slow down Will ceperatc ive inches in advance of the corresponding stepping peint, the teeth 121 Will be placed four teeth on the lead to the right on the nut 7 9.

Referring more particularly to the. diagrain of Fig. 8 showing the various circuits and also certain parts of the machine which are shown in other Iigures et the drawing, 130 is a double pole contacter, connecting motor 58 for forward rotation. 131 is a double pele contacter, connecting motor 5S, previously described for reverse rotation. 133 is a resistance, and 134, 135 and 136 are connections on resistance 133. 137 is an indicating lamp. 3S is a punch solenoid.

51, 52 is the keyboard or group el' contacts coperating with the distance record sheet at, as already described. The bottoni contacts o1' the keyboard are common and are connected to a thirty Velt control line or circuit 174. 86, 87 is a group et stop contacts, one for each inch et' punch travel as previously described. 141 is a group el slow contacts, one for each inch of punch travel, likewise previously described.

The contact controller 79 copeates With the toreooing as already described. 67 the group of sixteen stop pins and solenoids and 96, 97 is the group of sixteen contacts Ylor timing the setting of the stop pins, beth being previously described.

140 is a contacter which is operated on counter E. M. F. during acceleration et the meter 5S, and when closed it cuts out section 134-135 et the resistance 133. 142 is a contacter which when closed connects section 134-136 of the resistance 133, across the armature ei the motor 5S, for slew speed. 144 is a contacter which is energized When contacter 142 closes and contacter 146 is open. It makes a part of the circuit for indicating lamp 137. 145 is a contacter which when closed energizes the coil of contacter 130. 146 is a contacter which when closed energizes the coil of contaeter 131. 147 is a contacter which closes atter the completion of any distance, as explained later, and Which then energizes the punch solenoid 13S. 148 is a energized position, energizes the coil of centaeter 145 and which in the energized position, energizes coil et contacter 147. 150 is a contacter which, .in the denergized pesition, energized coil of contacter 140, for high speed of motor 5S, and in the energized position, energized coil of contacter 142 for slow speed of motor 58. 151 is a relay having a dash pet 177 for retardation in closing. 152 is a contacter energized from keyboard 51, 52 through key LT, tor spacing less than an inch. 153 is a vcontacter energized When the proper inch Contact et contacts 86, 87 is closed by contact controller 79. Contacter 153, When-energized, connects one side et the 230 volt line 17() to selenoids 67. 154 is a group of sixteen centact-ors energized by contact S inv keyboard 51, 52. lVhen energized it connects one side et 230 volt line 170 to one side et the coil of stop pin solenoid 67, and also` connects one side of the 30 velt line to one side of contacts 96, 97. 155, 156. and 157 are three contactors which are energized through 0, 1() and 2O contacts et keyboard 51, 52. `hese contacters when energized, connect one side et the 30 volt line to the contacts of contactors 165 166 and 167 respectively. 165, 166 and 16( are each groups of ten contactors. One of each group is energized by one of ten contacts 1 of keyboard 51, 52. 16S is a contacter, the coil Vof which is connected in series with the coils of contactors 165, 166 and 167. 1t will close provided the I contact of keyboard 51, is making contact. 1n the energized position, contacter 163 completes one side et thc coil circuit et centactor 130. 161 is a limit switch, normally closed, and operated by contact controller 79 to determine and regulate the extreme limit et' travel et the punch. 230 is one side et 230 volt'control circuit, and 171 is the other side thereof. 172 is one side oit 172 velt poiver circuit, and 173 is the other side thereof. 174 is one side et the 30 velt centrel circuit, and 17 5 is the other side thereof. 176 is a resistance.

Description of operation.

Assume a reading et 4f@ inches, and the mechanism in zere position to start.

Through contact 0 on keyboard 51, 52, one side ot coil of contacter 155 is connected to line 174. The other side of coil eifcontact-or 155 is connected to line 17 5, through cont-acts of contacter 14S. This energizes contacter 155.

One side oi' the coils ot' contractors 165, 166 and 167 is connected to control line 174 through contact 1 of keyboard 51, 52. The other side of the coils is connected through coil oi' contactor 168 and through contacts of contact-or 148 to line 17 5. This closes contactor 168, which in closing connects resistance 176 in parallel with its own coil, allowing enough current to pass to close contactors 165, 166 and 167.

Contacter 155 being closed through its contacts it connects line 174 to the contacts ot' contact-or 165. These contacts connect line 174 to the 4 inch contact of the series oi' 86, 87 and 141. y n

One side of coil of contactor 145 is con'- nected through the normally closed contacts of contactor 144, and through contacts of contactor 148 to line 175. The other side of the coil of contactor 145 is connected through the normally closed contacts of contactor 149 and through contact W of keyboard 51, 52 to line 174. This closes contactor 145, which through its contacts connects line 170 to one side of the coil of contactor 130. The other side of the coil of contactor 130 is connected through the normally closed contacts of contactor 131, through limit switch 161 and through the contacts of contactor 168 to line 171. This closes contactor 130, thereby connecting motor 58 as follows: through line 172 through the motor iield, and through the contacts'of contactor 130 to one side of motor 58, and through line 17 3, through the contacts of contactor 130 to 'connection 135 of resistance 133. Thence through connection 134 of resistance 133 to the other side of motor 58 thereby causing motor to start.

The coil of contactor 140 is connected across the armature of motor 58 one side thereof going through the normally closed contacts of contactor 150. Contacter 140 closes at a pre-determined counter electromotire force causedby motor 58, and in closing it short circuits section 134-135 of resistance 133, thereby connecting motor 58 directly across lines 172 and 173, for full speed forward.

As shaft 43 carrying arrn 61 and contact closers or controllers 79 and 101 rotate, contact controller 79 is moved forward until the four inch contact of the contacts 141 is, in turn, closed, connecting line 174 through thc contacts of contactor 155 and through the contacts of contactor 165, to one side of the coil of contactor 150. The other side of the coil of contactor150 is connected to line 175, thereby energizing contactor 150. Contactor 150 in so closing also acts to open one side of the coil of contactor 140, which inserts into the circuit of motor 58, section 134-135 of resistance 133. I

Cont-actor 150` in closing, connects one side of the coil of contactor 142 to one'sidc' of motor 58. The other side of the coil of contactor 142 is connected to one side of the armature of motor 58. Contactor 142 in closing, connects section 134, 136 of resistance, as a shunt across the armature of motor 58, thereby causing slow speed ot' the motor. Contactor 142 in closing, also con nects line 175 to one side of the coil of'contactor 144, through the normally closed contact oli' contactor 144. The other side of coil of contactor 144 is connected through the normally closed contact of contactor 146, through the normally closed contact or contactor149, and `through W Contact on keyboard 51, 52 to lineA 174. This energizes contactor 144, which in closing, makes through its contacts a holding circuit for its coil from line 175. l

Motor 58 now runs at slow speed, and continues to so run until contact controller 79 closes the contact 86, 87, which correspond to four inches. When this takes place, line 174 is connected to one side of the coil of contactor 153 and to one side of the coil of relay 151 through the contacts of contactor 155 and through the contacts of contactor 165. The other side of the coil of contactor 153 is: connected to line 175 through the contacts of contactor 148, through contacts of contactor 154 and through the selectively energized sixteenths of-an-inch contact 96, 97. When such selectively energized contact is closed by contact controller 101, contactor 154 has one side of its coil connected to line 17 5 through the contacts of co-ntactor 148 and the other side of its coil connected to line 174, through S contact of keyboard 51, 52. Therefore contactor 154 is energized. In closing contactor 154 connectsv line 170 to one side of pin solenoid 67, which is the pin for the selected sixteenth of an inch.

Contacter 153 is energized When contact controller 101 closes the energized contact 96, 97. Contacter 153 in closing connects line 171to the common side or circuit branch of pin solenoids 67, thereby energizing and setting the pin solenoid selected by contactors 154. Contactor 153 in closing also makes a holding circuit for itself and relay 151. When arm 61 strikes the set pin 64 it stops, at the desired inch and sixteenth in accordance with the set or selected contacts 51-52.

Relay 151 has one side of its coil connected to line 174 through the four inch contact of contacts 86, 87, through contacts of contactor 165 and through contacts of contactor 155. The other side of the coil of relay 151 is connected to line 175, through the contacts of contactor 145, the contacts of contactor 153 and through contacts of contactor 148. T hercfore. relay 151 is energized and starts to close with dash-pot retardation. This retardation is long enough to allow arm 61 to inake at least one revolution. One revolution of arni 61, or a fraction thereof, thus takes `place before the arin 61 strikes the selected stop pin, as already described. Relay 151 in closing connects line 174 through the lV contact in keyboard 51, 52 te one side of the coil on contacter 149,` and one side et' the coil of contacter 147. The other side of the coil of contacter 149 is connected to line 175. rTherefore, contacter 14S) is energized, and when closed inakes its own holding circuit, and deiinergizes contact-0r 145, which in opening dcnergizes contacter 130, and relay 151. energizes inotor 58. One side of the coil of contacter 147 being connected to line 174 by the clesing'ef relay 151, and the other side of said coil being connected te line 175, it energizes contacter 147, which through its contacts connects one side of punch solenoid 138 to line 171, and the other side of punch solenoid 138 is connected to line 170, and thereby operates the punch.

l/Vhen the record sheet is advanced in the keyboard 51, 52, the circuit through 17 4-175 is broken, and all `eontactors released. After the record sheet reaches its new position, the circuit through 174-175 is again closed.

For ra reading of 14,115 inches, the operz tien is the saine, except that contact 156 in keyboard 51,52 is inade instead of Contact 155. This energizes contacter 156 and cennects line 174 to the contacts of contacter 166, and so en to the fourteen inch centacts 86, 87 and 141.

If the following reading is greater than the last reading', contact HT in keyboard 51, 52 is used. 1f the reading is less, contacter 148 will remain in the denergized position until contact controller' 7 9 travels back and closes the "zero contact 141. VThis is accoinplished as follows: Line 175 connects through the normally closed contact of contacter 148, te one side of the coil ef contacter 146. The other side of the coil of contacter 146 cennects te lineV 174, thereby energizing contacter 146 which when closed connects line 171 to one side of thecoil of contacter 131. The other side of the coil of contacter 131 is connected threiig'h the normally closed contacts of contacter 130 te line 171. This closes contacter 131, which connects -nieter 58 for reverse rotation.

Acceleration is effected in the saine vinanner as forward rotation. 'Contacter 146 in closing' also connects line `174 to RR- contact of contacts 141. When contact controller 79 in returning closes contact RR, line 174. is connected through contact RR. of contacts 141 `to one side of the `coil of contacter 130 producing', as explained, slew 'speedtof motor for forward rotation. After further Areverse travel of Contact controller 155, the contact of contacts 141 is closed, connecting'v line 174 to one sideef the `ceilefcontacter 148.v The Contacter 130 lin opening de-l other side of the coil of contacter 148 is cennected to line 175 and contacter 148 is thus energized. Contacter 148 in closing makes connections for setting, as `previously eX- plained.

If the next setting is for a greater distance than the last setting, when line 174-175 has been closed, after the advance ef the distance rec-ord sheet a in the keyboard 51, 52, line 174 is connected through contact HT of keyboard 51, 52 to one side of the coil of centactor 148, energizing` this cont-actor the saine as if contact controller 79 had returned to zero, and allowing' the inetor 58 to `go ferward at once.

There'are provided, by certain features of the invention, nieans for detecting any failure 'in the operation of any of the foregoingmechanisms and parts, the embodied forni et' which as follows:

Failure of 4contact S 'in keylioard 51, 52. Contactor 154 will not close. Tnch contacts 86,- 87 land 141 "will be energized, and lcontactcontroller7S) will goforward. the nioter 58 running' first at high speed. and then slowingY down, as lpreviously explained; but when contact controller 79 leaves the energized contact-141, contacter 15 will lee 'deenergized, which through its contacts deenereizes contacter I142. Contacter 144 as previously explained, is energized. One side of the coil o"f contacter 145 was connected to line 175, through the contacts of contacter 142 the contacts eff contacter 144 and the contacts of contacter 148. Therefore, contacter 142 being denergixed. centactor is also `deenergized, which dcenergiL/.es contacter 130, dis-connecting' ineter 58. Contacter 142 when dcinergrized connects line 175, through a ynormally closed contact, through a Contact of contacter 144 to one side of' the yindicatingl lainp 137. The other side of lamp 137 is connected to line 174. '.lhereforc, when the control `goes trein low speed to *high speed, which indicates that the selected pin solenoid has failed to set, the meter 58 stops, and the indicating' lan'ip glows, calling` the operators attention thereto.

Failure of 1 contact in keyboard 51, prevents line 174 from beine; connected to contacter lgroups 165. 166, 167 and. therefore, contacter 168, which has its coil in scries with the 'fcoils of conlactors 165, 1667 167 vcannot close. This prevents line 171 freni beine` connected te the coil of contacter 130 and inotor 58 will not start.

Failure ofy er 156 contacts in keyboard 51, prevents contacts 86, 87 frein being` energized, and therefore niotor 58 will start and run unt-il contact controller 79 operates the linii-t switch 161. The opera.- tion of this limit switch'deinergizes contactor 130, `thereby disconnectin'gf motor The ipu-neh will operate only' when relay 151 has functioned. The coil of relay 151 is energized on one side through the contacts of contacter 1&5, through the sixteenth-ofan-inch contacts, 9G, 97 and through contacts of contacter 154. l`lierefore, if con-- taeter 15-1 is not energized, corresponding to failure of S contact in keylboard 51, 52 relay 151 will not he energized.

1f contact 1 on keyboard 51, 52 fails, contacter groups 165, 166, 167 will not he energized, which,v as explained prevents contactor 1(58 from closing, prevents motor 58r from starting, and, therefore prevents completion of the cycle up to the point of punching. In case of failure of 155, 15G contacts of keyboard 51, 52, none of the-contacts SG, S7, lalare energized, and consequently relay 151 cannot he energized, andV the punch cannot operate.

What we claim as our .invention and desire to secure hy Letters Patent is 1. A machine for punching structural shapes including' in combination means for longitudinally feeding the shape, means for stopping` the shape, punch and die blocks traveling Itogether transversely to the shape, screw shafts on which the punch and die blocks are mounted, respectively, a. shaft rotating proportionally to the relative travel of the shape and punches, connectionsI for rotating said last-mentioned shaft and said screw-threaded shafts together', an arm on said shaft and rotating therewith. an annuilar series of stop pins in the path of said arm, a. series of solenoids to project the stop pins as select-ed, circuit controlling devices comprisii'ig series of pairs of electrical contacts, a contact pin for each pair, each pair of contacts heilig closed lov the corresponding pin, a contact controller mounted upon and movable along said shaft and acting to close the corresponding contact-s, a. circular series of swing-pressed pins encircling said shaft, a corresponding series of pairs of electrical contacts, a second contact controller mounted on said shaft to rotate therewith and to successively actuate the circularly arranged springpressed pins to close the corresponding pairs of contacts, and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pin to arrest the stop arm and the shaft.

2. A distance determining device for niietal punching machines including in combination a. shaft rotating proportionally to the relative travel of the shapeand punches, an arin on said shaft. and rotating therewith, an annular series of stop pins in the path of said arm, a series of solenoids to project the stop pins as selected, circuit controlling devices comprising series of pairs of elec'- trical contacts. a contact pin for each pair, each pair of contacts being closed by the corresponding pin, a contact controller mounted upon and movable along said shaft and acting to close the corresponding contacts, circuit controlling means including a series of pairs of contacts encircling said sha-ft, a second contact controller rotating with said shaft and acting to close said encircling pairs of contacts, and circuit connections from the various contacts to the solcnoids to energize a selected solenoid to actuate the corresponding stop pin to arrest the stop arm and the shaft.

3. A distance determiningI device for metal punching machines including in comliination a shaft rotating proportionally t0 the rela-tive travel of the shape and punches, an arm on said shaft and rotating therewith, a series of stop pins in the path of said arm, a series of solenoids to project the stop pins as selected, circuit controlling devices coinprising series of pairs of electrical contacts, a contact pin for each pair, each pair of contacts being closed by the corresponding pin, a contact. controller mounted upon and movable along said shaft and acting to close the corresponding contacts, circuit controlling' means including a series of pairs of contacts encircling said shaft, a second contact controller rotating with said shaft and acting to close said encircling pairs of contacts, and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actua-te the corresponding stop pin to arrest the stop arm and the shaft.

4. A machine for punching` structural shapes including in con'ihination means for longitudinally feeding the shape, means foi` stopping' the shape, punch and die hlocls traveling together transversely to the shape, screw shafts on which the punch and die blocks are mounted, respectively, a shaft rotating proportionally to the relative travel of the shape and punches, connections for rotating .said last mentioned shaft and said screw shafts together, an arm on said shaft and rotating therewith. an annular series of stop pins in the path of said arm, a series of solenoids to project the stop pins as selected, a plurality of cooperating circuit con trolling devices comprising a longitudinally disposed series of contacts along the shaft, a

`longitudinally traveling Contact controller traveling along the shaft and' coperatiilg therewith, a circular series of contacts about the shaft, a rotating` contact controller ro tating about the shaft and coperating with the circular contacts, and circuit connections from the various contacts to the solenoids to energize a select-ed solenoid to actuate the corresponding stop piu to arrest the stop arm and the shaft.

5. A machine for punching structural shapes including in combination means for longitudinally feeding the shape, means for stopping the shape, punch and' die blocks traveling together transversely to the shape, means for moving and positioning the punch and die block relatively to the shape, said means including a rotating shaft, a plurality of cooperating circuit controlling devices comprising a longitudinally disposed series of contacts along the shaft, a longitudinally traveling contact controller travel ing along the shaft and cooperating therewith, a circular series of contacts about the shaft, a rotating contact controller rotating about the shaft and cooperating with the circular contacts and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pin to arrest the stop arm and the shaft.

G. A machine for punching structural shapes including in combination means for longitudinally feeding the shape, means for stopping the shape, punch and die blocks traveling together transversely to the shape, means for moving and positioning the punch and die block relatively to the shape, said means including a series of circuit controlling devices representing units in a distance denomination, a series of contacts representing sub-multiples of said distance denomination, means for successively closing the contacts of the first series to correspond to the relative travel of the punch and shape, and means for closing all the sub-nmltiple contacts betweeneach succeeding closure of the contacts of the first mentioned series.

7. A machine for punching structural shapes including in combination means for longitudinally feeding the shape, means for stopping the shape, punch and die blocks traveling together transversely to the shape, means for moving and positioning the punch and die block relatively to the shape, said means including a series of circuit controlling devices representing units in a distance denomination, a series of contacts representing sub-multiples of said distance denomination, means for successively closing the contacts of the first series to correspond .to the relative travel of the punch and shape and means for closing all the sub-multiple contacts between each succeeding closure of the contacts of the rst mentioned series and a distance record sheet and coperating means for selectivelyenergizing the contacts correspondingto the successive distance readings.

8. A distance determining device for metal punching machines including in combination a shaft rotating' proportionally to the relative travel of the shape and punches, an arm on said shaft and rotating therewith. an annular series of stop pins in the path of said arm, a series of solenoids to project the stop pins as selected, a series of teeth eX- tending alongside the shaft, a plurality of spningspressed pins arranged between the' teeth, a corresponding series of pairs of electrical contacts, each pair of contacts being closed by the corresponding pin, a contact controller mounted upon and movable along said shaft and having' on its exteriorl threads engaging With said series of teeth extending along the shaft, the thread successively engaging and actuating the stop pins of the series to close the corresponding contacts, circuit controlling means including a series of pairs of contacts encircling said shaft, a contact controller rotating with said shaft and acting to close said encircling pairs of contacts, and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pin to arrest the stop arm and the shaft, the contacts along the shaft being in parallel, the contacts of the circuh r group being in parallel and the tivo groups being in series, a distance record sheet and coperating means for selectively energizing the contacts corresponding to the successive distance readings.

9. A distance determining device for metal punch ing machines including in combination a shaft rotating proportionally to the relative travel of the shape and punches, an arm on said shaftand rotating therewith, an annular series of stop pins in the path of said arm, a series of solenoids to project the stop pins as selected, circuit controlling devices comprising a series of pairs of electrical contacts, a Contact pin for each pair, each pair of contacts being closed by the corresponding pin, a. contact controller mounted upon and movable along said shaft and acting to close the corresponding contacts, a second circular series of spring-pressed pins encircling said shaft, a corresponding series of pairs of electrical contacts, a contact. controller mounted on said shaft to rotate therewith and to successively actuate the circularly arranged springpressed pins to close the corresponding pairs of contacts, circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pin tc arrest the stop arm and the shaft, a motor driving said shaft and a friction clutch between the motor and shaft, a distance record sheet and cooperating means for selectively energizing the contacts corresponding to successive distance readings.

10. A machine for punching structural shapes including in combination means for longitudinally feeding the shape, means for stopping the shape, punch and die blocks traveling together transversely to the shape, screw shafts on Which the punch and die blocks are mounted, respectively, a shaft rotating proportionally to the rela-tive travel ofthe shape and punches, connections for rotating said last mentioned shaft and said ..ewv threaded shafts tegether, en en said shaft and rotating therewith, an annular series of lstop pins in the path of said arm, aseries of solenoids to project the stop pins as selected, circuit controlling devices comprising series of pairs of electrical contacts, a contact pin for each pair of contacts, each pair of contacts being closed byv the corresponding pin, a contact controller mounted upon and movable along said shaft and acting to close the corresponding conta'cts, a circular series of spring-pressed pins encircling said shaft, a corresponding series of pairs of electrical contacts, a secondl contact controller mounted on said shaft to rotate therewith and to successively actuate the circularlyarranged spring-pressed pins to close the corresponding pairs of contacts,

and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actu-ate the corresponding stop pin to arrest the stop arm and the'shaft, a distance record sheet andV cooperating means for selectively energizing the contacts corresponding to successivevdistance readings. f .j

11. A machine for punching structural shapes including in combination means for longitudinally feeding the shape, means for stopping the shape, punch and die blocks traveling together transversely. to the shape, screw shafts on which the punch and die blocks are mounted, respectively, a shaft rotating proportionally to the relative travel of the shape and punches, connections for rotating said lastfmentioned shaft and said screw threaded shafts together, an arm on said shaft and rotating therewith, an annu- V lar series of stop pins, in the path of said arm, a series of solenoids to project the stop pins as selected, circuit controlling devices A comprising series of pairs of electrical contacts, a contact pinfor each pair, each pair of contacts being closed by the corresponding pin, a contact controller mounted upon and movable along said shaft and acting to close the corresponding contacts, a circular series of spring pressed pins encircling said shaft, a corresponding series of pairs of electrical contacts, a second contact controller mounted onsaidV shaft to rotate therewith yand to successively actuate the circularly arranged spring-pressed pins to close the corresponding pairs of contacts,"and circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pinto arrest the st opjarm and thek shaft, theicontacts along the shaft being inparallehthe contacts `of the circular group beingin parallel and the two groups being in series, a distance record sheet and cooperating means for selectively energizing the contacts corresponding to successive distance readings.

lea

12,? A machnefor punching :structural 'shapes including-iii combination-means fer tending alongside the shaft, a plurality of :spring-pressed pins, arranged between the gear teeth, a corresponding series of pairs of electrical contacts, each pair of contacts being closed by the corresponding pin, a contact controller mounted upon and movable along said shaft and having on its exterior threads engaging with said series of teeth extending along theshaft, the thread successively engaging and actuating the stop pins of the series to close the corresponding contacts, a circular series of spring-pressed pins encircling said shaft, a corresponding series of pairs of electrical contacts, a contact controller mounted on said shaft `to rotate therewith and to successively actuate the circularly arranged spring-pressed pins to close the corresponding pairs of contacts, circuit connections from the various contacts to the solenoids to energize a selected solenoid to actuate the corresponding stop pin to arrest the stop arm and the shaft, a distance record sheet, and coperating means for selectively energizing the contacts corresponding to successivel distance readings.

13. A distance determining device for metal punching machines including in comhination a shaft rotating proportionally to the relative travel of the shape and punches, an arm on said shaft and rotating therewith, an annular series of stop pins Vin the path of said arm, a series of solenoids to project the stop pins asselected, a series of teeth eX- tendingalongside the shaft, a plurality of spring-pressed pins arranged between the teeth, a corresponding series of pairs of electrical contacts, 'each pair of contacts being closed by the corresponding pin, a contact controller mounted upon and movable along said shaft and having on its exteriorthreads engaging with said series of teethlcxtending along the shaft, the threads successively engaging and actuating the stop pins of the -pairs of electrical contacts. a contact Lcontroller mounted on said ,shaft to rotate there with and to successively,actuate the circularlv arranged spring-pressed pins to close the corresponding pairs of contacts, and cird `cuit connectisns frpinthe various contacts' to the solenoids to energize a selected solenoid to actuate a corresponding stoppin tol arrest the stop arm andthe shaft, a distance record sheet and cooperating means foi-selectively energizing the con tact-s correspond-ing to successive distance readings:

111-. A distance detern `ning `device for metal punching machines including in conibination a shaft rotating proportionally to the relative travel of thel shape' and punches, an arm on= `aid shaft and rotatingltlierewith, an annular series of stop pins in. the path of said arm, a series of solenoids to project the stop pins assel'ected, a series of teeth extending alongside the shaft,a plurality of spring-pressed pins arranged between the gear teeth, a corresponding series of pairs of electrical contacts, each pair' 0f contacts being closed by the coriesponding pin, 'a contact controller mounted upon and movable alongsaid shaft and having on its exterior threads engaging with said series of teeth 'extending along the shaft, the thread Y successively engaging and actuating the spring-pressed pins of the series to close the corresponding contacts, a circular series of spring-pressed pinsV encircling said shaft, a corresponding series of pairs of electrical contacts, a contact controller mounted on said shaft to rotate ytherewith and to" successively actuate rthe circularly arranged spring-pressed pins to close the corresponding pairs o f contacts, and'circuit connections from the vai'ious contacts to the solenoids to energize a selected solenoid'to actuate the corresponding stop pin to arrest the stop arin and the shaft, ,the contacts along the shaft being in parallel, the contacts of the circular group being in parallel and the two groups being in series, a distance record sheet and cooperating means for selectively energizing the contacts corresponding to successive distance readings.

15. A` distance determining device for metal punching machines including in combination a shaft rotating proportionally to the relative travel of the shape and punches,

an arm on` said shaft androtating therewith,

A`anl annular series of stop pinsin the path of arm, aY seriesof solenoids to project the stop pins as' selected, a' series of teeth extending' alongside the "shaft, `a plurality of -`along said shaft and 'having 'on its exterior i spring-pressed pins arranged' between the gear teeth, a Correspondiiig series of'pairs of electrical "contacts, each pair of, contacts being closed by the corresponding 'pin,"a contacti'controller mounted upon and movable threads engaging with said:` series of' teeth entendingalong the shaft, the thread successively engaging and actuating the stop pins of the series to close the correspondingfcontactis, a circular series Vof s'pringlpressed plnsuencircling said shaft, a corresponding series of pairs of electricalcontacts, a contact controller mounted on said shaft torrotate therewith and to successively actuate the eii'cularly arranged. spring-pressed pins to close the corresponding pairs of contacts, circuit connections from the various contacts to the; solenoids to energize a selected solernoidto actuate the corresponding stop pin,

to arrest the stop arm and the shaft, a motor driving saidshaft and a friction clutch between tlie motor and shaft, a distance record sheet and cooperating means for selectively energizing the contacts corresponding to successive distance readings.

1G. .A machine for Vpunching'structural Vshapesincluding incombination means for traveling together transversely to the shape, i means for transversely traveling and positioiiing the'punch and die including-'ameinber representing distance units and a cop- 1 erating member representing sub-multiples of such distance units, andv a distance record sheet cont-rolling said members.` v

18. A machine for punching structural shapes including in combinationl punch and die blocks traveling together transversely to the shape, means for moving and positioning the punch and die blocks relatively to the shape, said means includingla rotating shaft,

a plurality of cooperating circuit controlling devices comprising a longitudinally disposed series of contacts along the' shaft, a longitudinally traveling contact controller traveling alongthef shaft and coperating therewith, a circular series of contacts about the shaft, a rotating contact controller rotating about the shaft and cooperating with the circular contacts and circuit connections fromthe various contacts to thesolenoids to 'energize a selected solenoid to actuate the corresponding stop pinY to Aarrest the stop "arm and the shaft. i

19. A machine for punchingrstructural f shapes including inI combination punch and *die bloclrs traveling together transversely to the shape, means for moving and positionto correspond to thev relativevftravel of the,

punch and shape, and means for closing all the sub-inultiple contacts between each succeeding closure of the contacts of the first mentioned series.

20. A machine for punching structural shapes including),` in combination punch and die blocks traveling together transversely to the shape, means for moving and positioning the punch and die blocks relatively to the sha-pe, said means including a series of circuit controlling devices representing units in a distance denomination, a Vseries of contacts representing sub-multiples of said distance denomination, means for succesively closing the contacts of the first series to correspond to the relative travel of the punch and shape and means for closing all the submultipie contacts between each succeeding closure of the contact of the first mentioned series and a distance record sheet and coperating means for selectively energizing the contancts corresponding to the successive distance readings.

2l. A machine for punching structural shapes including` in combination a punch, devices for eecting measured relative movement between the punch and work including aseries of circuit controlling devices representing units of a distance denomination, a series of contacts representing submultiples of such distance denomination, means for successively closing the contacts of the first series to correspond to the relative travel of the punch and the work, and means for closing all the sub-multiple contacts between each succeeding closure of the contacts of the first-mentioned series.

22. A machine for punching structural shapes including in combination a punch, devices for eifecting measured relative movement between the punch and work including a series of circuit controlling devices representing units of a distance denomination,` a series of contacts representing submultiples of such distance denomination, means for successively closing the contacts of the first series to correspond to the relative travel o-f the punch and the work, means for closing all the sub-multiple contacts between each succ-ceding closure of the contacts of the first-mentioned se 1ies, and means for stopping the relative movement of the punch and work controlled from said contacts.

23. A machine for punching structural shapes including in combination a punch, and a device for relatively positioning the punch and work, including a shaft rotating proportionately to the relative travel of the punch and work, a threaded member rotating with the shaft, teeth engaging the threaded member to move it along the shaft, a circuitv and a plurality of circuit closing means arranged along the shaft and operated by said member, and means controlled by the circuit for stopping the relative movement of the punch and work.

24;. A machine for punching structural shapes including in combination a punch, and a device for relatively positioning the punch and work, including a shaft rotating proportionately to thev relative travel of the punch and work, a threaded member rotating with the shaft, teeth engaging the threaded member' to move it along the shaft, a circuit and a plurality of circuit closing means arranged along the shaft and operated by said member, and means controlled by the circuit for stopping` the relative movement of the punch and work, a series of submultiple contacts connected with said circuit and closed in succession between the successive closings of said first-mentioned contacts.

25. A machine for punching structural shapes including in combination a punch, and means for relatively positioning the punch and work including a shaft rotating, and a circuit closer traveling along the shaft, proportionately to the relative travel of the work and punch, a series of contacts representing distance denominations and arranged along the shaft to coperate with said circuit closer, a series of contacts representing sub-multiples of said distance denomination arranged about said shaft, and means for closing all said sub-multiple contacts in succession on each revolution of the shaft.

In testimony whereof, we have signed our names to this specificatiomin the presence of two subscribing witnesses.

LOUIS A. HAWTHORNE. BERTRAM S. PERO.

Witnesses: Y

EDW. V. VUn'rs, WILLARD L. HOAGLAND.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

